Dame Daphne Winkworth is a recurring fictional character from the Blandings Castle and Jeeves stories of English comic writer P. G. Wodehouse, being a menacing and scowling woman who is rarely seen to smile. She is an intimate acquaintance of Bertie Wooster's Aunt Agatha, another old harridan character. She is the widow of Sir P. B. Winkworth, the noted historian. She has also been a guest at Blandings Castle, making her, along with Roderick Glossop, one of the links between the worlds of Jeeves and Lord Emsworth. She used to be the headmistress of a girls' school in Eastbourne prior to retirement.
Dame Daphne's seat is at Deverill Hall, Hampshire, a large Tudor Manor which has been at its present location in the village of Kings Deverill for longer than anyone can really remember. She lives with her four sisters, all of whom have never been married and have spent their entire lives within the walls of Deverill Hall. They are: Emmeline (the serious one), Myrtle (the artistic one), Charlotte (the deaf one), and Harriet (the masculine one). Dame Daphne, however, is the widow of noted historian Sir P. B. Winkworth, though she wouldn't discuss the subject. She has a daughter, Gertrude Winkworth, who was engaged to Drones Club member and actor Catsmeat Potter-Pirbright with the complete disapprobation of Dame Daphne during The Mating Season, and a son, Huxley, who appears in the Blandings Castle series with his mother. Dame Daphne and Aunt Agatha once arranged for Bertie to marry Gertrude, a proposal against which Bertie protested vehemently, on the grounds that when in company they would be known unflatteringly as Bertie and Gertie. The proposal didn't go ahead, because Gertrude fell in love with Gussie Fink-Nottle, who at the time was engaged to Madeline Bassett.